Cryptography

Learn all about secure communication, data storage, commands that can be used to encrypt data and to create digital signatures under Max OS X, BSD, Linux, and Unix like operating systems.

Nginx: SPDY SSL Installation and Configuration On Debian / Ubuntu

by on May 19, 2013 · 0 comments

Google Chrome/Chromium, Firefox and Opera browser support SPDY networking protocol. It enables faster browsing on supported sites. SPDY is similar to HTTP, with particular goals to reduce web page load latency and improve web security. SPDY achieves reduced latency through compression, multiplexing, and prioritization. How do I enable nginx SPDY support running on Debian or Ubuntu Linux server?

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Linux / Unix: Generate A MD5 String

by on June 4, 2012 · 4 comments

I need to generate a md5 hash for given string. It will be used by shell script to generate keys for remote web service or cryptographic application. How do I generate a md5 hash based on any input string under Linux or Unix like operating systems?

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UNIX / Linux: PGP TarBall File Signature Keys Verification

by on April 14, 2010 · 2 comments

I‘ve downloaded open source software from the Internet. The download server also provided me the PGP signature file. How do I verify that signature (file.tar.gz.asc) file against downloaded software release (software.version.tar.gz) under Linux / UNIX operating systems?

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